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The 12 Line
Posted by: Architex
Date: November 28, 2017 04:52AM
If coins have no iron in them why do they register on the 12 line and not the 1 or a 0 line?

(Yes, I have too much spare time)



The real treasure is in the marketing.

XP Deus / CTX 3030 / Equinox 800

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Re: The 12 Line
Posted by: coherent
Date: November 28, 2017 06:42AM
My understanding is that the conductive and ferrous grid in the CTX (and etrac) aren't really measuring the ferrous content or conductiveness of the metal. They are simply names that Minelab engineers assigned to the 2 readings. The FSB technology improved on the single number target ID and included a second measurement. In an attempt to eliminate false/duplicate numbers on different metals. The circuitry pushes likely target metals to the 12 line and then differentiates them using the other "reading". It also depends on what mode you are in. As you have prob already noted some modes will show silver and some other metals as a 01-xx number. For detectorsists, it allows another "cross check" to assist in target ID. I got my (obviously vague) understanding of this information from the CTX book by Andy Sabisch. A quick read through the beginning section on FBS technology will give you a much clearer explanation. Or, maybe someone here will offer some specifics.



Edited 1 time(s). Last edit at 11/28/2017 06:44AM by coherent.

Re: The 12 Line
Posted by: Probey
Date: November 28, 2017 07:29AM
Don’t just concentrate on the 12 line when iron and other metals are in your area it will move good targets up and down the the fe lines causing you to miss good targets. Check out the videos by (cutaplug) he explains very well



Edited 1 time(s). Last edit at 11/28/2017 07:34AM by Probey.

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Re: The 12 Line
Posted by: Architex
Date: November 28, 2017 10:17AM
Thanks for the replies.



The real treasure is in the marketing.

XP Deus / CTX 3030 / Equinox 800

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Re: The 12 Line
Posted by: sgoss66
Date: November 28, 2017 12:14PM
Architex --

Yep, coherent is correct.

Detector ID numbers don't actually measure metal composition, of course -- which I'm sure you know. As I understand it -- similar to coherent's understanding -- Minelab's algorithms within FBS units process return signals in such a way that they can extract extra "pieces of information" from the waveforms of return signals that can't be extracted if utilizing a single-frequency platform. By doing comparisons between return signals from the different frequencies employed, the extra information extracted (or "removed," in the case of ground mineral contamination) is then plotted in x-y coordinate space, giving us the smartfind graph and the FE/CO numbers we are used to. Calling them "ferrous" and "conductive" numbers, though, are apparently not really "accurate" descriptions of these mathematical pieces of information, and CERTAINLY are not "measurements" of the actual target's metallic composition.

Steve



Minelab CTX 3030
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Re: The 12 Line
Posted by: Architex
Date: November 28, 2017 04:52PM
"Minelab's algorithms within FBS units process return signals in such a way that they can extract extra "pieces of information" from the waveforms of return signals that can't be extracted if utilizing a single-frequency platform."

Not sure what "Al Gore's rhythm" has to do with it, but OK. :rofl:



The real treasure is in the marketing.

XP Deus / CTX 3030 / Equinox 800



Edited 1 time(s). Last edit at 11/28/2017 04:52PM by Architex.

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Re: The 12 Line
Posted by: sgoss66
Date: November 28, 2017 08:26PM
Quote
Architex
Not sure what "Al Gore's rhythm" has to do with it, but OK. :rofl:

Nice! LOL! :clap:



Minelab CTX 3030
Minelab Equinox 800
Garrett ProPointer AT
Lesche hand digger
Lesche 38D Ground Shark "King of Spades"

Norman, OK

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